Convection heat dissipation type 3D printing nozzle

Abstract

The convection heat dissipation type 3D printing nozzle comprises a nozzle body. The nozzle is longitudinally installed in a nozzle installation opening in the center of the nozzle claw, the root of the nozzle claw horizontally extends to form an extending assembly end, and the extending assembly end is horizontally provided with a heat dissipation port. The top end of the nozzle is fixedly connected with a top cover, and the top cover is fixedly connected with the top plane of the nozzle claw through a plug. According to the convection heat dissipation type 3D printing nozzle, a horizontal drainage heat dissipation structure is adopted, and the situation that the heat dissipation structure in the vertical direction affects the 3D printing precision is avoided; according to the fan blade flow guide structure, the installation ring structure is matched with the fan blades to complete the fan blade flow guide structure, the fan blade flow guide structure is matched with the bearing inner ring to cooperatively guide airflow to complete rotary motion, and the airflow can be guided to flow through a fan installed at the heat dissipation port.

Description

Technical Field

[0001] The utility model belongs to the technical field of printing nozzle structures, and particularly relates to a convection heat dissipation type 3D printing nozzle. Background Art

[0002] During the 3D printing process, the nozzle needs to reach a specific melting temperature to smoothly extrude the material. If the nozzle cannot dissipate heat effectively, its temperature may become too high, which will not only affect the printing quality but may also cause the material to burn or clog the nozzle. Through heat dissipation design, it can be ensured that the nozzle remains within a suitable temperature range, thus guaranteeing the smooth progress of printing.

[0003] Continuous heating will cause thermal fatigue of the nozzle material, and a long-term high-temperature working environment may shorten the service life of the nozzle. The heat dissipation system can help reduce the temperature of the nozzle, slow down thermal damage, and thus extend the service life of the nozzle.

[0004] Therefore, in order to ensure the smooth progress of the 3D printing process, improve the printing quality and accuracy, extend the service life of the nozzle, and increase the printing speed, an effective heat dissipation design for the 3D printing nozzle is required.

[0005] In summary, the convection heat dissipation type 3D printing nozzle of the present application adopts a heat dissipation structure with horizontal drainage to avoid the influence of the vertical heat dissipation structure on the 3D printing accuracy; at the same time, to cooperate with the installation process of the nozzle, the present application adopts an installation ring structure to cooperate with the fan blades to complete the fan blade diversion structure. This structure can cooperate with the inner ring of the bearing to guide the airflow to complete the rotational movement, and the airflow can be guided by the fan installed at the heat dissipation port. Summary of the Invention

[0006] To achieve the above object, the technical solution of the utility model is as follows:

[0007] A convection heat dissipation type 3D printing nozzle includes a nozzle; the nozzle is longitudinally installed in the nozzle installation opening at the center of the nozzle claw, the root of the nozzle claw horizontally extends an extended assembly end, and the extended assembly end is horizontally provided with a heat dissipation port;

[0008] The top end of the nozzle is fixedly connected to the top cover, and the top cover is fixedly connected to the top plane of the nozzle claw through a bolt.

[0009] Further, a bearing is sleeved between the nozzle and the inner wall of the nozzle claw, two sets of installation rings are sleeved along the inner ring of the bearing, the two sets of installation rings are fixedly connected by fan blades, and air holes are reserved between adjacent fan blades.

[0010] Furthermore, the feeding port opened at the top of the nozzle is exposed along the center opening of the top cover.

[0011] Furthermore, an assembly port is arranged along the inner wall of the heat dissipation port.

[0012] Furthermore, the top opening of the nozzle claw is provided with an annular groove, and the annular groove is connected with the protrusion guide on the bottom end surface of the top cover.

[0013] Furthermore, the nozzle claw is provided with an anti-deformation opening along the side surface.

[0014] The beneficial effects of the utility model are:

[0015] Compared with the prior art, the utility model adopts a convection heat dissipation type 3D printing nozzle that adopts a horizontal drainage heat dissipation structure to avoid the vertical heat dissipation structure affecting the 3D printing accuracy; at the same time, in conjunction with the nozzle to complete the installation process, the application adopts a mounting ring structure to cooperate with the fan blade to complete the fan blade guide structure. This structure cooperates with the inner ring of the bearing to guide the airflow to complete the rotational motion, and the airflow can be guided by the fan installed at the heat dissipation port. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a convection heat dissipation type 3D printing nozzle assembly end of the utility model.

[0017] Figure 2 It is a top view of a convection heat dissipation type 3D printing nozzle assembly structure of the utility model.

[0018] Figure 3 It is a top view of a convection heat dissipation type 3D printing nozzle assembly end of the utility model.

[0019] Figure 4 This is a schematic structural diagram of a convection heat dissipation type 3D printing nozzle mounting ring of the utility model.

[0020] List of Figure Symbols:

[0021] 1 is the nozzle claw, 2 is the extended assembly end, 3 is the assembly port, 4 is the heat dissipation port, 5 is the nozzle mounting port, 6 is the ring groove, 7 is the plug, 8 is the top cover, 9 is the nozzle, 10 is the feed port, 11 is the bearing, 12 is the fan blade, 13 is the inner ring, 14 is the mounting ring, and 15 is the air hole. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific implementations. It should be understood that the following specific implementations are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in the figure, a convection heat dissipation type 3D printing nozzle includes a nozzle; the nozzle 9 is longitudinally installed in the nozzle installation opening 5 at the center of the nozzle claw 1. The root of the nozzle claw 1 horizontally extends with an extended assembly end 2, and a heat dissipation port 4 is horizontally opened on the extended assembly end 2. The top end of the nozzle 9 is fixedly connected to the top cover 8, and the top cover 8 is fixedly connected to the top plane of the nozzle claw 1 through a bolt 7. The feeding port 10 opened at the top of the nozzle 9 is exposed along the center opening of the top cover 8. Among them, the nozzle claw 1 serves as a limiting installation structure for the nozzle 9. In this application, a nozzle installation opening 5 is provided at the center of the nozzle claw 1. In this application, the nozzle 9 is installed in the center position of the nozzle installation opening 5 in a suspended manner through the top cover 8, and the feeding port 10 at the center of the top of the nozzle 9 will cooperate with the feeding pipeline to complete the feeding docking process. At the same time, in order to further fix the top cover 8, this application adopts the method of fixing with bolts 7 to complete the installation process.

[0024] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, a bearing 11 is sleeved between the nozzle 9 and the inner wall of the nozzle claw 1. Two sets of mounting rings 14 are sleeved along the inner ring 13 of the bearing 11, and the two sets of mounting rings 14 are fixedly connected through fan blades 12, and air holes 15 are reserved between adjacent fan blades 12. Among them, the outer ring of the bearing 11 is fixedly installed on the inner wall of the nozzle claw 1, and the inner ring of the bearing 11 is synchronously connected to the mounting ring 14. The fan blades 12 are connected and installed between the upper and lower two sets of mounting rings 14. The fan blades 12 serve as connecting members and also as an air flow guiding structure.

[0025] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, an assembly port 3 is provided along the inner wall of the heat dissipation port 4. Among them, the assembly port 3 can be externally connected to a fan and serves as a wind power driving structure.

[0026] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, a ring groove 6 is opened at the top opening of the nozzle claw 1, and the ring groove 6 is in guiding butt joint with the protrusion at the bottom end face of the top cover 8. Among them, the design of the ring groove 6 is to complete the guiding installation process in cooperation with the protrusion structure at the bottom end face of the top cover 8.

[0027] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, the nozzle claw 1 is provided with an anti-deformation opening along the side. Among them, the design of the anti-deformation opening can prevent the nozzle claw 1 from undergoing local structural deformation due to structural deformation in the case of overheating, and the anti-deformation opening retains a certain deformation space.

[0028] It should be noted that the above content only illustrates the technical idea of the present utility model, and the protection scope of the present utility model cannot be limited thereby. For those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications all fall within the protection scope of the claims of the present utility model.

Claims

1. A convection heat dissipation type 3D printing nozzle, comprising a nozzle; wherein: The nozzle (9) is longitudinally mounted in a nozzle mounting opening (5) at the center of the nozzle claw (1); an extended assembly end (2) is horizontally extended from the root of the nozzle claw (1); and a heat dissipation port (4) is horizontally opened on the extended assembly end (2); The top end of the nozzle (9) is fixedly connected to the top cover (8), and the top cover (8) is fixedly connected to the top plane of the nozzle claw (1) via a plug (7).

2. A convection heat dissipation type 3D printing nozzle according to claim 1, characterized in that: A bearing (11) is sleeved between the nozzle (9) and the inner wall of the nozzle claw (1); the bearing (11) is sleeved with two sets of mounting rings (14) along the inner ring (13); the two sets of mounting rings (14) are fixedly connected via blades (12); and air holes (15) are retained between adjacent blades (12).

3. The convection heat dissipation type 3D printing nozzle according to claim 1, characterized in that: The feed port (10) opened at the top of the nozzle (9) is exposed along the center of the top cover (8).

4. The convection heat dissipation type 3D printing nozzle according to claim 1, characterized in that: The heat dissipation port (4) is provided with an assembly port (3) along the inner wall.

5. The convection heat dissipation type 3D printing nozzle according to claim 1, characterized in that: The top of the nozzle claw (1) is open and provided with an annular groove (6), and the annular groove (6) is connected to the protrusion guide on the bottom end surface of the top cover (8).

6. The convection heat dissipation type 3D printing nozzle according to claim 5, characterized in that: The nozzle claw (1) is provided with an anti-deformation opening along the side.

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